Improvement in saw-mill head-blocks



'1. HIDDEN, x Saw-Mill Head-Blocks.

Patented Nov. 10,1874

v lime/aim:

UNITED STATES PATENT QFFICEQ JAMES HIDDEN, OEBAREE, VERMONT.

IMPROVEMENT IN SAW-MILL HEA D-BLOCKS.

Specification forming part of Letters Patent No. 156,664, dated November10, 1874; application filed February 16, 1874.

To all whom it may concern:

Be it known that I, JAMES HIDDEN, of Barre, in the county of Washingtonand State of Vermont, have invented new and useful Improvements inSaw-Mill Carriages, whereby the planks, boards, timber, &c., aresupport-v ed while being cut from the log by the saw, of which thefollowing is a specification:

The object of my invention is to prevent the great waste of lumber bysplitting off at or near the end of the board while sawing and thenature of the invention consists in the combination of the devicesemployed, as will be hereinafter more fully set forth.

.13 represents a shoe attached to the floor of the mill, and in positionbetween the sills a a to trip the cam, as it moves to and fro with thecarriage, at the proper time to throw or turn out the long side of thecam immediately after it passes the saw, and to return it beforereacliing'the saw when the-carriage is run backward.

The cam is of such a thickness or height as when it is thrown round, asstated above, it passes just under the log, and extends a sufficientdistance to allow the board, plank, 850., that is being cut from thelog, to rest thereon.

a to represent the parallel sides of the carriage; b b, the head-blocks.

Having thus described my invention, I claim as new and desire to secureby Letters Patcut- The combination of the pivoted cam A with thecarriage-sill a and shoe B, all constructed, arranged, and operatingsubstantially as and for the purposes herein described.

JAMES HIDDEN.

Witnesses:

1 THOMAS J. DEAVITT, G. W. AINsWoRTH.

